Fact 1: Finland is one of the Scandinavian countries.
Fact 2: Maybe your girls are boring in bed because you are boring in bed. Are you?

Finland is geographically NOT Scandinavia, that's a common misconception. Finland only fits into a quite recent political and cultural definition of Scandinavia, but the real Scandinavia is Sweden, Denmark and Norway. If you want to include Finland and Iceland, then you're better using the term 'Nordic'.